Bed construction



Feb. 7, 1928.

E. c. ORTMEIER BED CONSTRUCTION UNITED STATES Parsrrr4 orries.

ERNST C. RTMEIER, OF CHATTANOOGA, TENNESSEE.

Patented dreh. 7, 1928. if Y' Bun consfravofrroiv.

Appncanoa ined Mama 4, ieee. semi no. 92,116.

My invention relates to beds. 1n my coand foot sections 11, 11b. The central secpending` application Serial Number 739,7511 tion 10 is preferably rigidly attached in filed September' 25, 1924, I have described a some suitable manner to the main frame 6, bed particularly adapted for use by invalids while the head section 9 merely rests thereon, 00 t and patients in hospitals or sanitariums. being.;` `adapted to swing` upwards (as, for One of the objects of my present invenexample, onlpivot 12 bynwhichpart S) is contion is to provide a bed whereby a bedpan nected tol part 10), and thus through any may be placed under a patient and remove-d desired angle. 1t will thus be seen that by` therefrom after use without any discomfort the use of this device one can gradually ac`' 65 1o or soiling of the'bedclothes` and without custom a person who has been confined in liability of injury to a patient who may bed for sonic time, to sitting up. l have undergone a serious operation, where to Similarly the parts 11 and 11b merely move Certain parts of the body would be rest on the frame 6 and are adapted to be harmful or even dangerous. i raised to any desired position to accustoin 7() Anomal- Objegt 0i my invention ig to prothe patient to gradually bending his knees. vide means whereby a patient convalescing For this purpose, as in case of the headfrom a long` illness may accustoin himself piece 9, the part 11a may be made to swing gradually to sitting` up, while still resting,- on on the pivot 13 by which said part is conthe bed, thus obviating the annoyance of DGCtGCl O th@- 0911i ill POX'OII 10. PMS 1l 75 l0 having to be propped `up with pillows, which und 11b 111'@ plefelilbly COHDQCG by my ,we mmmuy getting out 0f place and mechanism which will effect simultaneous causing great discomfortl i n'i-oveinent of the said parts, as, for example, i @aber Objects and usgs of my invention by mechanism producing,- a toggle action, as will become apparent as the description is described in my copending application, @yogi-@55% mentioned above. Suitable mechanism is The invention will be more fully and indicated on the drawing by the reference easily understood by reference to the accom Character ll. myjng drawings, in which; y Strctched' across theentire auxiliary frame Figure 1 is a side elevation 0f the bed 8 1s a sheet of canvas or other suitable maten 85 au with the parts of the auxiliary imm@ in 1101-- rial on which the patient lies. lThis sheet mal position and the mattress lowered. muy b@ plQVded at l5 with an opening for 'Figure 2 is a plan view on an enlarged the COllVGnlcllCe 0f the patient. v

SCM@ @Owing the Operation 0f the head- Mounted on longitudinal shaft 16, which raising i'iiechanisms. operates in bearings 23, arev worms 17, gu

:it 'Figui-e {l} '1g a View showing in dai-m1 the adapted to ,Crear with worm wheels 18 on mechanism for raising' and lowering,V the shafts 19. Mounted also on the shafts 19 MJL-@w55 are pinions 2O adapted, as shaft 16 is turned Elgin-Q L jg n View @u the 1in@ wat of thus rotatingv worm 1'." and driving,r worin Figure wheels 18, to mesh with toothed rack 21 and e5 4o Referring 110W t0 the drawings, 1 denotes drawizhc spring' and mattress downwardly the head and 2 the foot of the bgd, 3 d@- and away from the frame 6 or upwardly and notes the angle iron connecting head and towards the frame according to the direcfoot portions; l the bed-spring and 5 the 910B 111 Which the Wheels and pinons are mattress. 6 represents what will be herein- 0211153@ t0 IOtlte BlLCletS 22 HIOUDG at 100 after referred to as the main frame, which the head and foot of the bed act as bearings is attached to the head and foot pieces by for shafts 16 and 1).

suitable attaching means, such as the braclr- Mounted in brackets 7, 7 and duplicated ets 7, 7. These brackets actalso as bearings on'each side of the bed is screw shaft 24. 0n for shafts t@ be hereinafter described, this shaft is mounted, near the head of the 105 ,5U Supcrposed on the main frame 6 is a bed, sleeve screw 25. Mounted on the sleeve frame 8 which for convenience in descripscrew is spiral gear 26, which meshes with tion will be hereinafter termed the auxiliary pinion 27 on longitudinal shaft 28, and at the frame. This auxiliary frame will for end of the sleeve screw, between gear 26 and further convenience in description be con the head Of the bed 1S mmlllted, O11 the Shaft 110 55 sidered as con'iprising` three main sections z-e 211, `e'ear 29 adapted to mesh with pinion 3() `head section 9, central section 10, and leg onlongitudinal shaft 31. Braclrets'mounted on the head and foot of the hed act as bearings for the shafts 2li, 28 and 31.

Mounted on the ranie near. the front end of the sleeve screw 25 is roller hearing 32. The hase of this bearing may `he of wood or metal, and this may have at or near the end of the sleeve screw a right angled abutting extension 33, adapted to act as a thrust hearingt'or the sleeve screw 25. The roller hearing- 32,` carries a roller 31 turning on pin `35tl`i`e purpose of which `will be presently explained.

Mounted on the sleeve screw 25 are trunnion 37 andnut 36, and attached to trunnion 36 is arm 38, which is lient upwards :tor the latter portion of its length. to hear on head piece 9. Thearin 3S carries on its'ahuo ting end a roller 39.

Attached to the under side of the headpiece 9 is a wedge 40, which I preferably provide with a cavity Ll1 in which the roller 39 may rest when the head-piece 9 is in raised position, `said roller hearing' directly on the edge 42 adapted to iitaud hold it securely against` movement further forward without lfurther rotation of the" sleeve-screw 25.

At the foot of the hed, and attached to the end oi foot portion 11b is a bracket i3 slotted at de to fit trunnion 45, this latter hein'g adapted when the shaft 245 is turned to morealong the screw threads i6 thereon and operate the knee-flexing apparatus.

The operation of my invention is 'lollowscWVhen the operator desires to lower the mattress heinserts the crank provided onto theendot shaft 16 an d turns in a cloekwise direction. This-rotates shaft 16 with wormsrl thereon, causing the latter to rotate worin-wheels 18 and shafts 19, which in turn rotate thepinions 20, causing them to mesh with the teeth in the racks Q1 and move the spring and a mattress downwardly and away from the frame G. Stops 4:7 attached to the head and toot of the hed serve to limit the downward movement of `the mattress.

T o raise the head portion 9, the operator inserts the crank onto the end of shaft 28, and turns in a clockwise direction. This sets up a motion between gears 27 and 2G, turning sleeve screw 25 and forcing iornf'ard the trunnion 36 carrying the arm 3S. The roller 39, as the arm moves forward, rises over the roller 34 and along the lower side oi" the wedge 40, finding rest in the cavity il and hearing directly on the edge 42. Roller 34 also acts as anfadditional` support for the `arm when the head piece is in normal posit10n,to` prevent ,breaking of the arrn under the strain, with `consequent shocl;` and possible injury to the patient or occupant of the hed. In this manner the head piece may he elevatedto any desired angle. To lower, the

crank is turned in the opposite direction. Roller 34 may, form the function oi a support for arm 38 hut need not necessarily, per` when the headpiece 9 is iii-raised position. To bend the knees, the operator inserts the crank onto the sha'tt 31, and turns in a clockwise direction setting in motion gear 29 and shaft` and moving the trunnion along the threaded portion e5 towards the head of the hed. Both the parts il and 1ib are simultaneously moved hy the action of the joint 11. 'lo lower, the crank is turned in the opposite direction.

It is to he understood that I do not limit i myself to the speeiic emhodiment of the invention described herein, `which is merely for the salie ol" illustrartion, as it is ohrions that many changes in the details or' construction may he made `within the scope of the appended claims.

I claim as my invention:

1. In a hed for invalide, portion adapted to iit the head and trunk of a patient, comprising, a sleeve screw mounted on a shaft and rotatable indeptnd` emily thereof, :i trunnion mounted on said sleevescrew and slidahlethereon, said trunnion carrying a hent arm and said arm carrying a roller on its opposite end, means adapted to ensure gradual and gentle movementei' the arm over the under side of said head and trunk portion until said portion is raised to the desired angle, and means attached to said head and trunk portion to support said arm when said head portion is in raised position, and assistit in maintaining said head and trunk i portion iirmly at the angle oi" elevation at which it has been set until the sleeve screw is operated to change that angle.

2. In a hed for invalide, a main frame, and an auxiliary frame, said auxiliary :traine comprisingI a head portion, a central portion and a leg,l and foot portion, means to raise said head portion comprising, a. sleeve screw mounted on a shalit and rotatalilc iudependently thereof, a trunnion mounted on said sleeve .screw and slidahle thereon. .said

means to raise a trunnion carrying a leent arm and said arm carrying` at its other end a roller, means mounted on the main/traino and means attached to said head portion, both oi.' said means co-opcrating to elgiect a gradual and gentle initial movement oi. the said arm and roller in anupward direction, said gradual and gent-le movement being afterwards continued along said means on the head portion alone, until said head portion is raised to the desired position, and means to aid said arm and roller in maintaining said head and trunk portionat the angle oi elevation at which it has heen set until the ffieeve screw is operated to change that angle.

3. In a hedv for invalide, a main fran'ie and an auxiliary frame, said main 'frame comprising a head portion, a central portion, and a lee; and foot portion, means to raise said head portion comprising a sleeve-screw [Elli Lesage? mounted on a shaft and rotatablek independently thereof, a trunnion mounted on said sleeve screw and slidable thereon, said trunnion carrying a bent arm and said arm carrying at its otherI end a roller, a roller bearing mounted on the main frame and carryinga roller, and a Wedge-shaped element mounted on the under side of the head portion, the roller carried by said bent arm resting against the roller carried by said roller-bearing,` and against said Wedge when the head portion is inflat or normal position.

ln a bed for invalids, a main frame and an auxiliary frame, said main frame comprising` a head portion, a central portion, and avleg and foot portion, means to raise said head portion Comprising a sleevescrew mounted on a shaft and rotatable independently thereof, a trunnion mounted on said sleeve screw and slidable thereon, said trunnion carryingl a bent arm and said arm carrying at its other end a roller, a roller bearing mounted on the main frame and carrying` a roller, and a vWedge-shaped element mounted on the under side of the head portion, said Wet ge having near one end a cavity adapted to receive the roller on said bent arm and hold it against forward movement, the roller carried by said bent arm resting` against the roller carried by said roller-bearing and against said, Wedge when the head portion is in flat or normal position.

5. fn a bedv for invalide, a main frame and an auxiliary frame, said main frame comprising` a head portion, a central portion, and a. leg and foot portion, means to raise said head portion comprising a sleevescreiv mounted on a shaft and rotatable independently thereof, a trunnion mounted on said sleeve screw and slidable thereon, said trunnion carrying a bent arm and said arm carrying at its other end a roller, a roller bearing` mounted on the main frame and carrying)- a roller, and a wedge-shaped elei'nont mounted on the under side of the head portion, said Wedge having near one end'thereof a cavity adapted to receive the roller on said bent arm and hold it against further forward movement, said caif'ity being rounded at its uppermost part, said rounded portion merging at one end into a straight edge making,` an angle of approximately 900 with the under side of the head portion, the roller carried by said bent arm resting` against the rolle-r carried by said roller-bearing and against said Wedge 'when the head portion is in flat or normal position.

(5. In a bed for invalide, a main frame and an auxiliary frame, said main frame comprising a head portion, a Central portion, and a leg and foot portion, means to raise said head portion comprising a sleeve-screw mounted on a shaft and rotatable independently thereof, a trunnion mounted on said sleeve screw and slidable thereon, said trunnion carrying a bent arm and said arm carrying at its other end a roller, a roller bearing mounted on the main frame and carrying a roller, and a Wedge-shaped ele` ment mounted on the under side of the head portion, said Wedge having,- near one end thereof a cavity adapted to receive the roller on said bent arm and hold it against further forward movement, said cavity being rounde ed at its uppermost part, said rounded portion merging at one end into a straight edge making' an angle of approximately 90o with under side of the head portion.V

7. In a bed for invalids, a main frame and an auxiliary frame, said main frame comprising a head portion, a eent'al portion, and a leg` and foot portion, means to raise said head portion comprisingl a sleeve-` screw mounted on a shaft and rotatable independently thereof, a trunnion mounted on said sleeve screw and slidable thereon, said trunnion carryingl a bent arm and said arm carrying` at its other end a roller, a roller bearing mounted on the main frame and an auxiliary frame, said main frame com-y prising a head portion, a central portion, and a leg and foot portion, means to raise said head portion comprisingV a sleeve-screw mounted on a shaft and rotatable independently thereof, a trunnion mounted on said sleeve. screw and sli'dable thereon, said trunnion carryingl a bent arm and said arm carrying at it-s other end a roller, a roller bearing mounted on the main frame and carrying,l a roller, and a wedgeshaped element mounted on the under side of the head portion, the roller carried by said. roller bearingeo operating,r With the wedgeshaped element to give said bentarm and the roller carried thereby a gradual and gentle initial movement when it is desired to raise the head portion, and said Wedge-shaped element having near one end thereof a cavity adapted to receive the roller on said bent arm and hold it against further forward movement, said cavity being rounded at its uppermost part,

said rounded portion merging at one end into a straight edge making an angle of approximately 90 with the under side of the head portion.

In testimony whereof, l have signed my name to this specification this 23rd dayof February, 1926.

ERNST C. ORTMEIER.

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